Stabilization of Clayey Soil with Alkali-activated Hybrid Slag/Cement
Open accessAbstract
This study investigates the stabilization performance of clayey soil treated with alkali-activated hybrid slag/cement. Sodium silicate (SS) and sodium hydroxide (SH) are used as alkali activators, whereas ground blast furnace slag (GGBS) and ordinary Portland cement (OPC) are used as sources of aluminosilicate. A total of 27 different types of mixtures are used for stabilization. Unconfined compressive strength (UCS) of untreated clay and stabilized soils are performed at immediately, 3-, 7-, 28-, and 90 days curing times under air-dried and wet-cured conditions. In addition, 90-d volume and mass changes in the samples are measured. Stabilized samples with an SS/SH ratio of 1 under air-dried conditions reveal moistening at early curing ages (≤28 days); afterward, sodium carbonate crystals appear in these samples at longer curing ages. Geopolymer-treated clayey soil exhibits lower volumetric and mass changes compared with OPC. Most of the stabilized clayey soil with alkali-activated hybrid slag/cement exhibits higher strength compared with OPC under air-dried and wet-cured conditions.
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References 43 · Cited by 4
- Authors
- Yıldırım, E., Bol, E., Avcı, E., & Özocak, A.
- Affiliations
- Sakarya University (TR)
- Bursa Technical University (TR)
- Venue
- Periodica Polytechnica Civil Engineering
- Published
- 2023-10-04
- Volume
- 68
- Issue
- 1
- Pages
- 260-273
- ISSN
- 0553-6626 (ISSN-L)
- 1587-3773
- OpenAlex
- W4387339268
- Cited by
- 4
- References
- 43
- Citations by year
- 2026: 2 · 2025: 2
- FWCI
- 0.47
- Type
- journal article
- Language
- en
- Open access
- diamond
- dx.doi.org
- Locations
- Periodica Polytechnica Civil Engineering (publishedVersion)
- Bursa Technical University Institutional Repository (submittedVersion, cc-by-nc-nd)
- Sakarya Üniversitesi Kurumsal Açık Akademik Arşivi (submittedVersion)
- Funders
- Sakarya Üniversitesi
- Topics
- Physical Sciences › Engineering › Civil and Structural Engineering › Geotechnical Engineering and Soil Stabilization
- Physical Sciences › Engineering › Civil and Structural Engineering › Concrete and Cement Materials Research
- Physical Sciences › Engineering › Civil and Structural Engineering › Geotechnical and construction materials studies
- Keywords
- soil stabilization, clay soil, alkali-activated materials, ground granulated blast furnace slag, ordinary Portland cement, sodium silicate, sodium hydroxide, geopolymer, unconfined compressive strength, water curing, volume change, mass change
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